MCP Server Development Guide

Overview

Build high-quality MCP (Model Context Protocol) servers that enable LLMs to accomplish real-world tasks through well-designed tools. Quality is measured not by API coverage, but by how effectively agents can use your tools to complete realistic workflows.

Core insight: MCP servers expose tools for AI agents, not human users. Design for agent constraints (limited context, no visual UI, workflow-oriented) rather than human convenience.

When to Use This Skill

Activate when:

• Building MCP servers for external API integration
• Adding tools to existing MCP servers
• Improving MCP server tool design for better agent usability
• Creating evaluations to test MCP server effectiveness
• Debugging why agents struggle with your MCP tools

Language Support:

• Python: FastMCP framework (recommended for rapid development)